Finding the Fourth Proportional to 35,801.61, 49,412.69 and 20,692.18

Step by Step Solution

1. Step 1: Write the proportion equation
   35,801.61 : 49,412.69 = 20,692.18 : x
2. Step 2: Convert to fraction form
   35,801.61/49,412.69 = 20,692.18/x
3. Step 3: Cross multiply
   35,801.61x = 49,412.69 × 20,692.18
4. Step 4: Simplify right side
   35,801.61x = 1,022,456,275.76
5. Step 5: Solve for x
   x = 1,022,456,275.76/35,801.61
6. Step 6: Final answer
   x = 28,558.95